Basically, it is designed to
process the FS2004 folder. However, it is possible to also select FS2002 and
even FS2000.

FSX does not accept .DLL files and gauges from versions prior to FS2000 . For
FS2000 and FS2002 aircraft FSX will display warning messages: you can just
accept them

This tool analyses aircraft.cfg, mdl and air files to find all ressources
required. For instance, it looks at a mdl file to extract a list of the textures
used and verifies if they exist. It also searches for non standard Windows
DLL's.

Sometimes there is a lot of unused textures listed in the visual model file.The
migration preset (in file.options) desactivates the logging for this particular
category.

NOTE: Some 3rd party aircraft use sophisticated gauges and DLL. They may require
an update in order to function under FSx..